Autologous Bone Marrow Mononuclear Cell Transplantation for Stroke Patients

Inclusion Criteria: * Patients with cerebral embolism. * NIHSS score is more than (or equal to) 10. * On day 7 after onset of stroke, the improvement of NIHSS is less than (or equal to) 5, compared with the level at administration. * Bone marrow aspiration can be done in 10 days after onset of stroke Exclusion Criteria: * Patient with cerebral hemorrhage or symptomatic hemorrhagic infarction. * Patient who expects brain surgery. * Patient with acute myocardial infarction. * Patient with coagulation disorder. * Number of Platelet \< 100000/mm3 * Serum creatinine level \>2.0mg/dl * Patient with malignancy. * Patient with uncontrolled proliferative diabetic retinopathy. * Patient suspected infective endocarditis. * HBV, HCV, HIV or HTLV positive